List of United States senators from New Hampshire

New Hampshire was admitted to the Union on June 21, 1788. It elects United States senators to class 2 and class 3. The state's current senators are Democrats Jeanne Shaheen and Maggie Hassan making it one of only four states alongside Minnesota, Nevada and Washington to have two female U.S. senators. Senator Shaheen is currently serving her third term (since 2009); Senator Hassan is currently serving her second term (since 2017). Jacob Harold Gallinger was New Hampshire's longest-serving senator (1891–1918).

List of senators
! rowspan=2 | 1 ! rowspan=6 | 1
 * - style="height:2em"
 * rowspan=2 align=left | Paine wingate.jpg Paine Wingate
 * rowspan=2 | Anti- Admin.
 * rowspan=2 nowrap | Mar 4, 1789 – Mar 3, 1793
 * rowspan=2 | Josiah Bartlett was at first elected in 1788, but "declined the appointment." Elected in 1789.Lost re-election.
 * rowspan=2 | 1
 * rowspan=3 | 1
 * rowspan=3 | Elected in 1788.
 * rowspan=6 nowrap | Mar 4, 1789 – Mar 3, 1801
 * rowspan=2 | Pro- Admin.
 * rowspan=6 align=right | John langdon.jpg John Langdon
 * rowspan=6 align=right | John langdon.jpg John Langdon


 * - style="height:2em"

! rowspan=5 | 2
 * - style="height:2em"
 * rowspan=5 align=left | Samuel Livermore.jpg Samuel Livermore
 * | Pro- Admin.
 * rowspan=5 nowrap | Mar 4, 1793 – Jun 12, 1801
 * rowspan=3 | Elected in 1792.
 * rowspan=3 | 2
 * | Anti- Admin.
 * | Anti- Admin.


 * - style="height:2em"
 * rowspan=4 | Federalist
 * rowspan=3 | 2
 * rowspan=3 | Re-election year unknown.
 * rowspan=3 | Democratic- Republican
 * rowspan=3 | Democratic- Republican


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=2 | Re-elected in 1798.Resigned.
 * rowspan=7 | 3

! rowspan=3 | 2
 * - style="height:2em"
 * rowspan=5
 * rowspan=7 | 3
 * rowspan=3 | Elected in 1800.Resigned.
 * rowspan=3 nowrap | Mar 4, 1801 – Jun 14, 1802
 * rowspan=3 | Federalist
 * rowspan=3 align=right | JamesSheafe.jpg James Sheafe


 * - style="height:2em"
 * colspan=3 | Vacant
 * nowrap | Jun 12, 1801 – Jun 17, 1801

! rowspan=4 | 3
 * - style="height:2em"
 * rowspan=4 align=left | SimeonOlcott.jpg Simeon Olcott
 * rowspan=4 | Federalist
 * rowspan=4 nowrap | Jun 17, 1801 – Mar 3, 1805
 * rowspan=4 | Elected in 1801 to finish Livermore's term.


 * - style="height:2em"
 * nowrap | Jun 14, 1802 – Jun 17, 1802
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! rowspan=3 | 3
 * - style="height:2em"
 * rowspan=3 | Elected in 1802 to finish Sheafe's term.Retired.
 * rowspan=3 nowrap | Jun 17, 1802 – Mar 3, 1807
 * rowspan=3 | Federalist
 * rowspan=3 align=right | WPlumer.jpg William Plumer


 * - style="height:2em"

! rowspan=9 | 4
 * - style="height:2em"
 * rowspan=9 align=left | Nicholas Gilman.jpeg Nicholas Gilman
 * rowspan=9 | Democratic- Republican
 * rowspan=9 nowrap | Mar 4, 1805 – May 2, 1814
 * rowspan=5 | Elected in 1804.
 * rowspan=5 | 4

! rowspan=2 | 4
 * - style="height:2em"
 * rowspan=5 | 4
 * rowspan=2 | Elected in 1807.Resigned.
 * rowspan=2 nowrap | Mar 4, 1807 – Jun 1, 1810
 * rowspan=2 | Democratic- Republican
 * rowspan=2 align=right nowrap | Nahum Parker
 * rowspan=2 align=right nowrap | Nahum Parker


 * - style="height:2em"
 * rowspan=3


 * - style="height:2em"
 * nowrap | Jun 1, 1810 – Jun 21, 1810
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! rowspan=4 | 5
 * - style="height:2em"
 * rowspan=2 | Elected in 1810 to finish Parker's term.
 * rowspan=2 nowrap | Jun 21, 1810 – Mar 3, 1813
 * rowspan=2 | Federalist
 * rowspan=2 align=right nowrap | Charles Cutts


 * - style="height:2em"
 * rowspan=4 | Re-elected in 1810.Died.
 * rowspan=7 | 5


 * - style="height:2em"
 * rowspan=5
 * rowspan=9 | 5
 * Legislature failed to elect.
 * nowrap | Mar 4, 1813 – Apr 2, 1813
 * colspan=2 | Vacant


 * - style="height:2em"
 * Appointed to continue the term.Retired when successor elected.
 * nowrap | Apr 2, 1813 – Jun 10, 1813
 * | Federalist
 * align=right nowrap | Charles Cutts

! rowspan=5 | 6
 * - style="height:2em"
 * rowspan=5 | Elected in 1813 to finish the vacant term that happened in 1813.Resigned.
 * rowspan=5 nowrap | Jun 10, 1813 – Jun 16, 1817
 * rowspan=5 | Federalist
 * rowspan=5 align=right | JeremiahMason.jpg Jeremiah Mason


 * - style="height:2em"
 * colspan=3 | Vacant
 * nowrap | May 2, 1814 – Jun 24, 1814

! rowspan=2 | 5
 * - style="height:2em"
 * rowspan=2 align=left | Thomas Weston Thompson.jpg Thomas W. Thompson
 * rowspan=2 | Federalist
 * rowspan=2 nowrap | Jun 24, 1814 – Mar 3, 1817
 * rowspan=2 | Elected in 1814 to finish Gilman's term.


 * - style="height:2em"

! rowspan=5 | 6
 * - style="height:2em"
 * rowspan=5 align=left | David Lawrence Morril.jpg David L. Morril
 * rowspan=5 | Democratic- Republican
 * rowspan=5 nowrap | Mar 4, 1817 – Mar 3, 1823
 * rowspan=5 | Elected in 1816.Retired.
 * rowspan=5 | 6
 * rowspan=3


 * - style="height:2em"
 * nowrap | Jun 16, 1817 – Jun 27, 1817
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! 7
 * - style="height:2em"
 * Elected in 1817 to finish the vacant term that happened in 1813.
 * nowrap | Jun 27, 1817 – Mar 3, 1819
 * | Democratic- Republican
 * align=right | ClementStorer.jpg Clement Storer

! rowspan=3 | 8
 * - style="height:2em"
 * rowspan=3 | 6
 * rowspan=3 | Elected in 1818.
 * rowspan=3 nowrap | Mar 4, 1819 – Mar 3, 1825
 * rowspan=3 | Democratic- Republican
 * rowspan=3 align=right | JohnParrott.jpg John Fabyan Parrott
 * rowspan=3 align=right | JohnParrott.jpg John Fabyan Parrott


 * - style="height:2em"

! rowspan=7 | 7
 * - style="height:2em"
 * rowspan=7 align=left | SamuelBell.jpg Samuel Bell
 * | Democratic- Republican
 * rowspan=7 nowrap | Mar 4, 1823 – Mar 3, 1835
 * rowspan=4 | Elected in 1823.
 * rowspan=4 | 7


 * - style="height:2em"
 * rowspan=6 | National Republican
 * rowspan=2
 * rowspan=4 | 7
 * nowrap | Mar 3, 1825 – Mar 16, 1825
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! rowspan=3 | 9
 * - style="height:2em"
 * rowspan=3 | Elected in 1825.
 * rowspan=3 nowrap | Mar 16, 1825 – Mar 3, 1831
 * rowspan=3 | Jacksonian
 * rowspan=3 align=right | Levi Woodbury.jpg Levi Woodbury


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1828 or 1829.Retired.
 * rowspan=3 | 8

! rowspan=3 | 10
 * - style="height:2em"
 * rowspan=5 | 8
 * rowspan=3 | Elected in 1831.Resigned to become Governor of New Hampshire.
 * rowspan=3 nowrap | Mar 4, 1831 – May 30, 1836
 * rowspan=3 | Jacksonian
 * rowspan=3 align=right | IsaacHill.jpg Isaac Hill
 * rowspan=3 align=right | IsaacHill.jpg Isaac Hill


 * - style="height:2em"

! rowspan=5 | 8
 * - style="height:2em"
 * rowspan=5 align=left | HenryHubbard.jpg Henry Hubbard
 * rowspan=3 | Jacksonian
 * rowspan=5 nowrap | Mar 4, 1835 – Mar 3, 1841
 * rowspan=5 | Elected in 1835.Retired to run for Governor of New Hampshire.
 * rowspan=5 | 9
 * rowspan=3


 * - style="height:2em"
 * nowrap | May 30, 1836 – Jun 8, 1836
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! 11
 * - style="height:2em"
 * Elected in 1836 to finish Hill's term.Lost re-election.
 * nowrap | Jun 8, 1836 – Mar 3, 1837
 * | Jacksonian
 * align=right | John-Page-NH.jpg John Page

! rowspan=3 | 12
 * - style="height:2em"
 * rowspan=2 | Democratic
 * rowspan=4 | 9
 * rowspan=3 | Elected in 1837.Resigned.
 * rowspan=3 nowrap | Mar 4, 1837 – Feb 28, 1842
 * rowspan=3 | Democratic
 * rowspan=3 align=right | Mathew Brady - Franklin Pierce - alternate crop.jpg Franklin Pierce
 * rowspan=3 align=right | Mathew Brady - Franklin Pierce - alternate crop.jpg Franklin Pierce


 * - style="height:2em"

! rowspan=4 | 9
 * - style="height:2em"
 * rowspan=4 align=left | Levi Woodbury.jpg Levi Woodbury
 * rowspan=4 | Democratic
 * rowspan=4 nowrap | Mar 4, 1841 – Sep 20, 1845
 * rowspan=4 | Elected in 1841.Resigned to become a Justice of the U.S. Supreme Court.
 * rowspan=7 | 10
 * rowspan=2

! 13
 * - style="height:2em"
 * Appointed to continue Pierce's term.Elected in 1842 to finish Pierce's term.
 * nowrap | Mar 1, 1842 – Mar 3, 1843
 * | Democratic
 * align=right | W000458.jpg Leonard Wilcox

! rowspan=6 | 14
 * - style="height:2em"
 * rowspan=6 | 10
 * rowspan=6 | Elected in 1843.
 * rowspan=6 nowrap | Mar 4, 1843 – Mar 3, 1849
 * rowspan=6 | Democratic
 * rowspan=6 align=right | CharlesGAtherton.jpg Charles G. Atherton
 * rowspan=6 align=right | CharlesGAtherton.jpg Charles G. Atherton


 * - style="height:2em"
 * rowspan=4


 * - style="height:2em"
 * colspan=3 | Vacant
 * nowrap | Sep 20, 1845 – Dec 1, 1845

! 10
 * - style="height:2em"
 * align=left | BWJenness.jpg Benning W. Jenness
 * | Democratic
 * nowrap | Dec 1, 1845 – Jun 13, 1846
 * Appointed to continue Woodbury's term.Lost election to finish Woodbury's term.

! 11
 * - style="height:2em"
 * align=left | JosephCilley.jpg Joseph Cilley
 * | Liberty
 * nowrap | Jun 13, 1846 – Mar 3, 1847
 * Elected in 1846 to finish Woodbury's term.Lost election to next term.

! rowspan=3 | 12
 * - style="height:2em"
 * rowspan=3 align=left | JPHale.jpg John P. Hale
 * | Independent Democratic
 * rowspan=3 nowrap | Mar 4, 1847 – Mar 3, 1853
 * rowspan=3 | Elected in 1846.Retired to run for President of the United States.
 * rowspan=3 | 11

! rowspan=6 | 15
 * - style="height:2em"
 * rowspan=2 | Free Soil
 * rowspan=8 | 11
 * rowspan=6 | Elected in 1848 or 1849.Died.
 * rowspan=6 nowrap | Mar 4, 1849 – Jan 11, 1855
 * rowspan=6 | Democratic
 * rowspan=6 align=right | MNorrisJr.jpg Moses Norris Jr.
 * rowspan=6 align=right | MNorrisJr.jpg Moses Norris Jr.


 * - style="height:2em"

! 13
 * - style="height:2em"
 * align=left | CharlesGAtherton.jpg Charles G. Atherton
 * | Democratic
 * nowrap | Mar 4, 1853 – Nov 15, 1853
 * Elected in 1852.Died.
 * rowspan=11 | 12
 * rowspan=6


 * - style="height:2em"
 * colspan=3 | Vacant
 * nowrap | Nov 15, 1853 – Nov 29, 1853

! 14
 * - style="height:2em"
 * align=left | JWWilliams.jpg Jared W. Williams
 * | Democratic
 * nowrap | Nov 29, 1853 – Jul 15, 1854
 * Appointed to continue Atherton's term.Appointment expired without election.


 * - style="height:2em"
 * rowspan=4 colspan=3 | Vacant
 * rowspan=4 nowrap | Jul 15, 1854 – Jul 30, 1855
 * rowspan=4 |


 * - style="height:2em"
 * nowrap | Jan 11, 1855 – Jan 16, 1855
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! 16
 * - style="height:2em"
 * Appointed to finish Norris's term.
 * nowrap | Jan 16, 1855 – Mar 3, 1855
 * | Democratic
 * align=right | JSWelles.jpg John S. Wells


 * - style="height:2em"
 * rowspan=2
 * rowspan=6 | 12
 * Legislature failed to elect.
 * nowrap | Mar 4, 1855 – Jul 29, 1855
 * colspan=3 | Vacant

! rowspan=7 | 15 ! rowspan=2 | 17
 * - style="height:2em"
 * rowspan=7 align=left | JPHale.jpg John P. Hale
 * rowspan=7 | Republican
 * rowspan=7 nowrap | Jul 30, 1855 – Mar 3, 1865
 * rowspan=4 | Elected in 1855 to finish Atherton's term.
 * rowspan=2 | Elected late in 1855.Died.
 * rowspan=2 nowrap | Jul 30, 1855 – May 26, 1857
 * rowspan=2 | Republican
 * rowspan=2 align=right | JasBell.jpg James Bell


 * - style="height:2em"
 * rowspan=3


 * - style="height:2em"
 * nowrap | May 26, 1857 – Jun 27, 1857
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! rowspan=5 | 18
 * - style="height:2em"
 * rowspan=2 | Elected in 1857 to finish Bell's term.
 * rowspan=5 nowrap | Jun 27, 1857 – Jul 27, 1866
 * rowspan=5 | Republican
 * rowspan=5 align=right | Daniel Clark 1809-1891 - Brady-Handy.jpg Daniel Clark


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1859.
 * rowspan=3 | 13


 * - style="height:2em"
 * rowspan=5 | 13
 * rowspan=3 | Re-elected in 1861.Resigned.
 * rowspan=3 | Re-elected in 1861.Resigned.


 * - style="height:2em"

! rowspan=8 | 16
 * - style="height:2em"
 * rowspan=8 align=left | Aaron H. Cragin (US Senator from New Hampshire).jpg Aaron H. Cragin
 * rowspan=8 | Republican
 * rowspan=8 nowrap | Mar 4, 1865 – Mar 3, 1877
 * rowspan=5 | Elected in 1864.
 * rowspan=5 | 14
 * rowspan=3


 * - style="height:2em"
 * nowrap | Jul 27, 1866 – Aug 31, 1866
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! 19
 * - style="height:2em"
 * Appointed to finish Clark's term.Retired.
 * nowrap | Aug 31, 1866 – Mar 3, 1867
 * | Republican
 * align=right | GeorgeFogg.jpg George G. Fogg

! rowspan=3 | 20
 * - style="height:2em"
 * rowspan=3 | 14
 * rowspan=3 | Elected in 1866 or 1867.Lost renomination.
 * rowspan=3 nowrap | Mar 4, 1867 – Mar 3, 1873
 * rowspan=3 | Republican
 * rowspan=3 align=right | James W. Patterson - Brady-Handy.jpg James W. Patterson
 * rowspan=3 align=right | James W. Patterson - Brady-Handy.jpg James W. Patterson


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1870.
 * rowspan=3 | 15

! rowspan=3 | 21
 * - style="height:2em"
 * rowspan=3 | 15
 * rowspan=3 | Elected in 1872.Lost re-election.
 * rowspan=3 nowrap | Mar 4, 1873 – Mar 3, 1879
 * rowspan=3 | Republican
 * rowspan=3 align=right | Bainbridge Wadleigh - Brady-Handy.jpg Bainbridge Wadleigh
 * rowspan=3 align=right | Bainbridge Wadleigh - Brady-Handy.jpg Bainbridge Wadleigh


 * - style="height:2em"

! rowspan=6 | 17
 * - style="height:2em"
 * rowspan=6 align=left | Edward H. Rollins - Brady-Handy.jpg Edward H. Rollins
 * rowspan=6 | Republican
 * rowspan=6 nowrap | Mar 4, 1877 – Mar 3, 1883
 * rowspan=6 | Elected in 1876.Lost re-election.
 * rowspan=6 | 16


 * - style="height:2em"
 * rowspan=4
 * rowspan=7 | 16
 * Legislature failed to elect.
 * nowrap | Mar 3, 1879 – Mar 18, 1879
 * colspan=3 | Vacant

! 22
 * - style="height:2em"
 * Appointed to fill vacancy caused by legislature's failure to elect.Retired.
 * nowrap | Mar 18, 1879 – Jun 18, 1879
 * | Republican
 * align=right | CharlesBell.jpg Charles H. Bell


 * - style="height:2em"
 * nowrap | Jun 18, 1879 – Jun 20, 1879
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! rowspan=12 | 23
 * - style="height:2em"
 * rowspan=4 | Elected in 1879 to finish the vacant term.
 * rowspan=4 nowrap | Jun 20, 1879 – Mar 3, 1885
 * rowspan=4 | Republican
 * rowspan=4 align=right | Henry W. Blair - Brady-Handy.jpg Henry W. Blair


 * - style="height:2em"


 * - style="height:2em"
 * colspan=3 | Vacant
 * nowrap | Mar 4, 1883 – Aug 2, 1883
 * Legislature failed to elect.
 * rowspan=8 | 17

! rowspan=3 | 18
 * - style="height:2em"
 * rowspan=3 align=left | Austin F. Pike - Brady-Handy.jpg Austin F. Pike
 * rowspan=3 | Republican
 * rowspan=3 nowrap | Aug 2, 1883 – Oct 8, 1886
 * rowspan=3 | Elected late in 1883.Died.


 * - style="height:2em"
 * rowspan=8 | 17
 * Legislature failed to elect.
 * nowrap | Mar 3, 1885 – Mar 5, 1885
 * colspan=2 | Vacant
 * colspan=2 | Vacant


 * - style="height:2em"
 * rowspan=7 | Appointed to continue the vacant term.Elected in 1885 to finish the vacant term.Lost renomination.
 * rowspan=7 nowrap | Mar 5, 1885 – Mar 3, 1891
 * rowspan=7 | Republican
 * rowspan=7 align=right | Henry W. Blair - Brady-Handy.jpg Henry W. Blair


 * - style="height:2em"
 * colspan=3 | Vacant
 * nowrap | Oct 8, 1886 – Nov 14, 1886

! rowspan=2 | 19
 * - style="height:2em"
 * rowspan=2 align=left | Govpersoncheney.jpg Person Colby Cheney
 * rowspan=2 | Republican
 * rowspan=2 nowrap | Nov 14, 1886 – Jun 14, 1887
 * rowspan=2 | Appointed to continue Pike's term.Retired when successor qualified.


 * - style="height:2em"
 * rowspan=2

! 20
 * - style="height:2em"
 * align=left | William E. Chandler - Brady-Handy.jpg Bill Chandler
 * | Republican
 * nowrap | Jun 14, 1887 – Mar 3, 1889
 * Elected in 1887 to finish Pike's term.Legislature failed to elect.

! 21
 * - style="height:2em"
 * align=left | Gilman Marston - Brady-Handy.jpg Gilman Marston
 * | Republican
 * nowrap | Mar 4, 1889 – Jun 18, 1889
 * Appointed to start term when legislature failed to elect.
 * rowspan=4 | 18
 * rowspan=2

! rowspan=6 | 22
 * - style="height:2em"
 * rowspan=6 align=left | William E. Chandler - Brady-Handy.jpg Bill Chandler
 * rowspan=6 | Republican
 * rowspan=6 nowrap | Jun 18, 1889 – Mar 3, 1901
 * rowspan=3 | Elected in 1889 to finish the term.

! rowspan=15 | 24
 * - style="height:2em"
 * rowspan=3 | 18
 * rowspan=3 | Elected in 1891.
 * rowspan=15 nowrap | Mar 4, 1891 – Aug 17, 1918
 * rowspan=15 | Republican
 * rowspan=15 align=right | Jacob Harold Gallinger.jpg Jacob H. Gallinger
 * rowspan=15 align=right | Jacob Harold Gallinger.jpg Jacob H. Gallinger


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1895.Lost renomination.
 * rowspan=3 | 19


 * - style="height:2em"
 * rowspan=3 | 19
 * rowspan=3 | Re-elected in 1897.
 * rowspan=3 | Re-elected in 1897.


 * - style="height:2em"

! rowspan=6 | 23
 * - style="height:2em"
 * rowspan=6 align=left | HenryBurham.jpg Henry E. Burnham
 * rowspan=6 | Republican
 * rowspan=6 nowrap | Mar 4, 1901 – Mar 3, 1913
 * rowspan=3 | Elected in 1901.
 * rowspan=3 | 20


 * - style="height:2em"
 * rowspan=3 | 20
 * rowspan=3 | Re-elected in 1903.
 * rowspan=3 | Re-elected in 1903.


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1907. Retired.
 * rowspan=3 | 21


 * - style="height:2em"
 * rowspan=4 | 21
 * rowspan=4 | Re-elected in 1909.
 * rowspan=4 | Re-elected in 1909.


 * - style="height:2em"


 * - style="height:2em"
 * colspan=3 | Vacant
 * nowrap | Mar 4, 1913 – Mar 13, 1913
 * Legislature elected late.
 * rowspan=7 | 22
 * rowspan=2

! rowspan=6 | 24
 * - style="height:2em"
 * rowspan=6 align=left | HenryFHollis.jpg Henry F. Hollis
 * rowspan=6 | Democratic
 * rowspan=6 nowrap | Mar 13, 1913 – Mar 3, 1919
 * rowspan=6 | Elected late in 1913.Retired.


 * - style="height:2em"
 * rowspan=6 | 22
 * rowspan=2 | Re-elected in 1914.Died.
 * rowspan=2 | Re-elected in 1914.Died.


 * - style="height:2em"
 * rowspan=4


 * - style="height:2em"
 * nowrap | Aug 17, 1918 – Sep 2, 1918
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! 25
 * - style="height:2em"
 * Appointed to continue Gallinger's term.Retired.
 * nowrap | Sep 2, 1918 – Nov 5, 1918
 * | Republican
 * align=right | IrvingDrew.jpg Irving W. Drew

! rowspan=8 | 26
 * - style="height:2em"
 * rowspan=2 | Elected in 1918 to finish Gallinger's term.
 * rowspan=8 nowrap | Nov 6, 1918 – Mar 3, 1933
 * rowspan=8 | Republican
 * rowspan=8 align=right | GeorgeHMoses.jpg George H. Moses

! rowspan=9 | 25
 * - style="height:2em"
 * rowspan=9 align=left | GHWKeyes.jpg Henry W. Keyes
 * rowspan=9 | Republican
 * rowspan=9 nowrap | Mar 4, 1919 – Jan 3, 1937
 * rowspan=3 | Elected in 1918.
 * rowspan=3 | 23


 * - style="height:2em"
 * rowspan=3 | 23
 * rowspan=3 | Re-elected in 1920.
 * rowspan=3 | Re-elected in 1920.


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1924.
 * rowspan=3 | 24


 * - style="height:2em"
 * rowspan=3 | 24
 * rowspan=3 | Re-elected in 1926.Lost re-election.
 * rowspan=3 | Re-elected in 1926.Lost re-election.


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1930.Retired.
 * rowspan=3 | 25

! rowspan=3 | 27
 * - style="height:2em"
 * rowspan=3 | 25
 * rowspan=3 | Elected in 1932.Lost re-election.
 * rowspan=3 nowrap | Mar 4, 1933 – Jan 3, 1939
 * rowspan=3 | Democratic
 * rowspan=3 align=right | GFHBrown.jpg Fred H. Brown
 * rowspan=3 align=right | GFHBrown.jpg Fred H. Brown


 * - style="height:2em"

! rowspan=16 | 26
 * - style="height:2em"
 * rowspan=16 align=left | StylesBridges(R-NH).jpg Styles Bridges
 * rowspan=16 | Republican
 * rowspan=16 nowrap | Jan 3, 1937 – Nov 26, 1961
 * rowspan=3 | Elected in 1936.
 * rowspan=3 | 26

! rowspan=8 | 28
 * - style="height:2em"
 * rowspan=3 | 26
 * rowspan=3 | Elected in 1938.
 * rowspan=8 nowrap | Jan 3, 1939 – Jul 24, 1953
 * rowspan=8 | Republican
 * rowspan=8 align=right | Charles Tobey.jpg Charles W. Tobey
 * rowspan=8 align=right | Charles Tobey.jpg Charles W. Tobey


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1942.
 * rowspan=3 | 27


 * - style="height:2em"
 * rowspan=3 | 27
 * rowspan=3 | Re-elected in 1944.
 * rowspan=3 | Re-elected in 1944.


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=6 | Re-elected in 1948.
 * rowspan=6 | 28


 * - style="height:2em"
 * rowspan=6 | 28
 * rowspan=2 | Re-elected in 1950.Died.
 * rowspan=2 | Re-elected in 1950.Died.


 * - style="height:2em"
 * rowspan=4


 * - style="height:2em"
 * nowrap | Jul 24, 1953 – Aug 14, 1953
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! 29
 * - style="height:2em"
 * Appointed to continue Tobey's term.Lost nomination to finish Tobey's term.
 * nowrap | Aug 14, 1953 – Nov 7, 1954
 * | Republican
 * align=right | RobertUpton.jpg Robert W. Upton

! rowspan=14 | 30
 * - style="height:2em"
 * rowspan=2 | Elected in 1954 to finish Tobey's term.
 * rowspan=14 nowrap | Nov 8, 1954 – Dec 31, 1974
 * rowspan=14 | Republican
 * rowspan=14 align=right | Norris Cotton.jpg Norris Cotton


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1954.
 * rowspan=3 | 29


 * - style="height:2em"
 * rowspan=6 | 29
 * rowspan=6 | Re-elected in 1956.
 * rowspan=6 | Re-elected in 1956.


 * - style="height:2em"


 * - style="height:2em"
 * Re-elected in 1960.Died.
 * rowspan=6 | 30
 * rowspan=4


 * - style="height:2em"
 * colspan=3 | Vacant
 * nowrap | Nov 26, 1961 – Jan 10, 1962

! 27
 * - style="height:2em"
 * align=left | MauriceMurphy.jpg Moe Murphy
 * | Republican
 * nowrap | Jan 10, 1962 – Nov 6, 1962
 * Appointed to continue Bridges's term.Lost nomination to finish Bridges's term.

! rowspan=12 | 28
 * - style="height:2em"
 * rowspan=12 align=left | M000486.jpg Thomas J. McIntyre
 * rowspan=12 | Democratic
 * rowspan=12 nowrap | Nov 7, 1962 – Jan 3, 1979
 * rowspan=3 | Elected in 1962 to finish Bridge's term.


 * - style="height:2em"
 * rowspan=3 | 30
 * rowspan=3 | Re-elected in 1962.
 * rowspan=3 | Re-elected in 1962.


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1966.
 * rowspan=3 | 31


 * - style="height:2em"
 * rowspan=4 | 31
 * rowspan=3 | Re-elected in 1968.Retired, then resigned early.
 * rowspan=3 | Re-elected in 1968.Retired, then resigned early.


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=6 | Re-elected in 1972.Lost re-election.
 * rowspan=6 | 32
 * rowspan=2

! 31
 * - style="height:2em"
 * Appointed to finish Cotton's term.
 * nowrap | Dec 31, 1974 – Jan 3, 1975
 * | Republican
 * align=right | WymanLouis(R-NH).jpg Louis Wyman


 * - style="height:2em"
 * rowspan=3
 * rowspan=6 | 32
 * Contested election.
 * nowrap | Jan 3, 1975 – Aug 8, 1975
 * colspan=3 | Vacant

! 32
 * - style="height:2em"
 * Appointed to continue term after contested election.
 * nowrap | Aug 8, 1975 – Sep 18, 1975
 * | Republican
 * align=right | Norris Cotton.jpg Norris Cotton

! rowspan=3 | 33
 * - style="height:2em"
 * rowspan=3 | Elected to finish contested term.Lost re-election and resigned early.
 * rowspan=3 nowrap | Sep 18, 1975 – Dec 29, 1980
 * rowspan=3 | Democratic
 * rowspan=3 align=right | John Durkin (1).jpg John Durkin


 * - style="height:2em"

! rowspan=7 | 29
 * - style="height:2em"
 * rowspan=7 align=left | Gordon J. Humphrey.jpg Gordon Humphrey
 * rowspan=7 | Republican
 * rowspan=7 nowrap | Jan 3, 1979 – Dec 4, 1990
 * rowspan=4 | Elected in 1978.
 * rowspan=4 | 33
 * rowspan=2

! rowspan=9 | 34
 * - style="height:2em"
 * Appointed to finish contested term, having been elected to the next term.
 * rowspan=9 nowrap | Dec 29, 1980 – Jan 3, 1993
 * rowspan=9 | Republican
 * rowspan=9 align=right | Warren Rudman.jpg Warren Rudman


 * - style="height:2em"
 * rowspan=3 | 33
 * rowspan=3 | Elected in 1980.
 * rowspan=3 | Elected in 1980.


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1984.Retired and resigned early to take his seat in the New Hampshire Senate.
 * rowspan=5 | 34


 * - style="height:2em"
 * rowspan=5 | 34
 * rowspan=5 | Re-elected in 1986.Retired.
 * rowspan=5 | Re-elected in 1986.Retired.


 * - style="height:2em"
 * rowspan=3


 * - style="height:2em"
 * colspan=3 | Vacant
 * nowrap | Dec 4, 1990 – Dec 7, 1990

! rowspan=7 | 30
 * - style="height:2em"
 * rowspan=7 align=left | Robert C Smith.jpg Bob Smith
 * rowspan=7 | Republican
 * rowspan=7 nowrap | Dec 7, 1990 – Jan 3, 2003
 * Appointed to finish Humphrey's term, having already been elected to the next term.


 * - style="height:2em"
 * rowspan=3 | Elected in 1990.
 * rowspan=3 | 35

! rowspan=9 | 35
 * - style="height:2em"
 * rowspan=3 | 35
 * rowspan=3 | Elected in 1992.
 * rowspan=9 nowrap | Jan 3, 1993 – Jan 3, 2011
 * rowspan=9 | Republican
 * rowspan=9 align=right | Gregg-official-photo-closeup.jpg Judd Gregg
 * rowspan=9 align=right | Gregg-official-photo-closeup.jpg Judd Gregg


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1996.Lost renomination.
 * rowspan=3 | 36


 * - style="height:2em"
 * rowspan=3 | 36
 * rowspan=3 | Re-elected in 1998.
 * rowspan=3 | Re-elected in 1998.


 * - style="height:2em"

! rowspan=3 | 31
 * - style="height:2em"
 * rowspan=3 align=left | John E. Sununu.jpg John E. Sununu
 * rowspan=3 | Republican
 * rowspan=3 nowrap | Jan 3, 2003 – Jan 3, 2009
 * rowspan=3 | Elected in 2002.Lost re-election.
 * rowspan=3 | 37


 * - style="height:2em"
 * rowspan=3 | 37
 * rowspan=3 | Re-elected in 2004.Retired.
 * rowspan=3 | Re-elected in 2004.Retired.


 * - style="height:2em"

! rowspan=9 | 32
 * - style="height:2em"
 * rowspan=9 align=left | Shaheen Senate Portrait.jpg Jeanne Shaheen
 * rowspan=9 | Democratic
 * rowspan=9 nowrap | Jan 3, 2009 – present
 * rowspan=3 | Elected in 2008.
 * rowspan=3 | 38

! rowspan=3 | 36
 * - style="height:2em"
 * rowspan=3 | 38
 * rowspan=3 | Elected in 2010.Lost re-election.
 * rowspan=3 | Jan 3, 2011 – Jan 3, 2017
 * rowspan=3 | Republican
 * rowspan=3 align=right | Kelly Ayotte portrait.jpg Kelly Ayotte
 * rowspan=3 align=right | Kelly Ayotte portrait.jpg Kelly Ayotte


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 2014.
 * rowspan=3 | 39

! rowspan=6 | 37
 * - style="height:2em"
 * rowspan=3 | 39
 * rowspan=3 | Elected in 2016.
 * rowspan=6 nowrap | Jan 3, 2017 – present
 * rowspan=6 | Democratic
 * rowspan=6 align=right | Maggie Hassan, official portrait, 115th Congress.jpg Maggie Hassan
 * rowspan=6 align=right | Maggie Hassan, official portrait, 115th Congress.jpg Maggie Hassan


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 |Re-elected in 2020.
 * rowspan=3 | 40


 * - style="height:2em"
 * rowspan=3|40
 * rowspan=3| Re-elected in 2022.
 * rowspan=3| Re-elected in 2022.


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=2 colspan=5 | To be determined in the 2026 election.
 * rowspan=2| 41


 * - style="height:2em"
 * 41
 * colspan=5 | To be determined in the 2028 election.
 * colspan=5 | To be determined in the 2028 election.